Snakebite envenoming is a potentially life-threatening disease that typically results from the injection of a mixture of different toxins (“venom”) following the bite of a venomous snake. Envenoming can also be caused by venom being sprayed into a person’s eyes by certain species of snakes tha...t have the ability to spit venom as a defence measure. Not all snakebites result in envenoming: some snakes are non-venomous and venomous snakes do not always inject venom during a bite. About 50–55% of all snakebites result in envenoming. Snake venoms are complex mixtures of protein and peptide toxins, varying from one species to another, and even within species. The toxins in snake venoms are evolutionarily adapted to interact with a large variety of cellular targets in the organisms exposed to them. In humans and animals, snakebite envenoming affects multiple organ systems (depending on the particular species of snake and the classes of toxins present in the venom) and can cause, among other things: haemorrhage and prolonged disruption of haemostasis, neuromuscular paralysis, tissue necrosis, myolysis (muscle degeneration), cardiotoxicity, acute kidney injury, thrombosis and hypovolaemic shock.
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The WHO continuously reviews available data on SARS-CoV-2 variants of concern. For this version, the global epidemiological
situation of the COVID-19 pandemic as of 21 January 2022 – at a time when the Omicron VOC had been identified in 171
countries across all six WHO Regions and was rapidly re...placing Delta worldwide – was considered Omicron has a substantial growth advantage, higher secondary attack rates and a higher observed reproduction number than Delta.
There is now significant evidence that immune evasion contributes to the rapid spread of Omicron. Other factors may be a shorter
serial interval (by about 0.8 to 1.2 days compared to Delta) and potential increased intrinsic transmission fitness . There is
growing evidence that with Omicron, there is lower vaccine effectiveness (VE) against infection and symptomatic disease soon after vaccination compared to Delta. There is also evidence of accelerated waning of VE over time of the primary series against infection and symptomatic disease for the studied vaccines. Further studies are required to better understand the drivers of transmission and declining incidence in various settings. These factors include the intrinsic transmission fitness properties of the virus, degree of immune evasion, vaccination coverage and level of vaccine-derived and post-infection immunity, levels of social mixing and degree of application of public health and social measures (PHSM).
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Schistosomiasis is widely recognized as a disease that is socially determined. An
understanding of the social and behavioural factors linked to disease transmission and
control should play a vital role in designing policies and strategies for schistosomiasis
prevention and control. To this must b...e added the awareness that schistosomiasis is
also a disease of poverty. It still survives in poverty-stricken, remote areas where there
is little or no safe water or sanitation, and health care is scarce or non-existent. For
a variety of complex reasons, many of which are addressed in this book, the disease
is particularly prevalent in sub-Saharan Africa, and persists in certain areas of rural
China. This concern for human behaviour in an environment of poverty echoes the
concerns of the new research priority for “diseases of poverty” identified by the
Special Programme for Research & Training in Tropical Diseases.
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Rabies is a virus (Lyssavirus) that infects cells in the central nervous
system, causing disease in the brain and, ultimately, death. Any animal
with rabies has the ability to transmit the disease to humans or other
animals.
There is no cure for rabies, but it is 100 percent preventable through
...
prompt, appropriate medical care.
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Rabies is a fatal viral zoonosis and serious public health problem.1 All mammals are believed to be susceptible to the disease, and for the purposes of this document, use of the term animal refers to mammals. The disease is an acute, progressive encephalitis caused by viruses in the genus Lyssavirus....
2 Rabies virus is the most important lyssavirus globally. In the
United States, multiple rabies virus variants are maintained in wild mammalian reservoir populations such as raccoons, skunks, foxes, and bats. Although the United States has been declared free from transmission of canine rabies virus variants, there is always a risk of reintroduction of these variants.The rabies virus is usually transmitted from animal to animal through bites. The incubation period is
highly variable. In domestic animals, it is generally 3 to 12 weeks, but can range from several days to months, exceeding 6 months.8 Rabies is communicable during the period of salivary shedding of rabies virus. Experimental and historic evidence documents that dogs, cats, and ferrets shed the virus for a few days prior to the onset of clinical signs and during illness. Clinical signs of rabies are variable and include inappetance, dysphagia, cranial nerve deficits, abnormal behavior, ataxia, paralysis, altered vocalization, and seizures. Progression to death is rapid. There are currently no known effective rabies antiviral drugs.
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En la actualidad, los daños que sufren los pacientes a causa de una atención poco segura constituyen un desafío
importante y creciente para la salud pública mundial y son una de las principales causas de muerte y discapacidad
en todo el mundo. La mayor parte de estos daños son evitables. Ahor...a que los países se esfuerzan por alcanzar la
cobertura sanitaria universal y los Objetivos de Desarrollo Sostenible, los efectos beneficiosos de un mayor acceso
a los servicios de atención de la salud pueden verse socavados por una atención poco segura. Los incidentes
relacionados con la seguridad de los pacientes pueden causar muerte y discapacidad, así como sufrimiento a
las víctimas y sus familias. Los costos económicos que conllevan los fallos de seguridad son elevados. A menudo
se reduce la confianza del público en los sistemas de salud locales cuando se dan a conocer estos accidentes.
El personal de salud implicado en sucesos graves que implican la muerte o un daño grave a un paciente
también puede sufrir un deterioro psicológico duradero y sentimientos de culpa y autocrítica muy arraigados
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Promoting health and preventing disease is a critical component of the effort required to achieve Universal Health Coverage (UHC). to date, efforts to achieve UHC have focused mostly on strengthening health systems and their capacities to provide curative care. However, experience from the COVID-19 ...pandemic has reaffirmed the need for resilient health systems, emphasizing primary health care, including preventive and promotive health and well-being.
Emerging from the eye of the storm as the global health lead agency during the pandemic, WHO is equipped with the required insights and actions for a holistic approach to “building back fairer and better” after COVID-19.
The Healthier Populations (UHP) Cluster in the African Region is designed to support Pillar 3 of WHO’s 13th Global Programme of Work (GPW13) which aims to make 1 billion people healthier by reducing health inequities, preventing diseases and injuries, addressing health determinants, and promoting partnerships for collaborative actions amongst all stakeholders.
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Lymphatic filariasis (LF) is an avoidable, debilitating, disfiguring disease caused by infection with the filarial parasites Wuchereria bancrofti, Brugia malayi and B. timori. Globally, 51.4 million people are
estimated to be infected. Lymphoedema and hydrocoele are the visible, chronic clinical co...nsequences of the lymphatic vessel impairment caused by infection with these parasites. Mosquitos in the genera Culex, Anopheles, Mansonia and Aedes transmit the parasites from person to person. 2020 marked the 20th year since WHO established the Global Programme to Eliminate Lymphatic Filariasis (GPELF) which aims to stop transmission of infection with mass drug administration (MDA) and to alleviate suffering among people affected by the disease through morbidity management and disability prevention (MMDP).
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La filariose lymphatique (FL) est une maladie évitable, incapacitante et défigurante, due à une infestation par des filaires parasites des espèces Wuchereria bancrofti, Brugia malayi et B. timori. On estime que 51,4 millions de personnes sont infectées dans le monde. Le lymphœdème et l’hydr...ocèle sont les conséquences cliniques chroniques visibles de l’altération des vaisseaux lymphatiques causée par la présence de
ces parasites dans l’organisme. Les parasites sont transmis d’une personne à l’autre par l’intermédiaire de moustiques des genres Culex, Anopheles, Mansonia et Aedes. L’année 2020 a marqué la 20e année du Programme mondial pour l’élimination de la filariose lymphatique (GPELF) établi par l’OMS, dont l’objectif est de mettre fin à la transmission de l’infection grâce à l’administration de masse de médicaments
(AMM) et d’alléger les souffrances des malades par la prise en charge de la morbidité et la prévention des incapacités (PMPI).
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En la Región de las Américas, las poblaciones están envejeciendo y se está experimentando una rápida transición demográfica. El índice de envejecimiento, que refleja el tamaño de los grupos de mayor edad por 100 en comparación con los menores de 15 años, demuestra claramente el aumento de... las personas de 60 años o más. En comparación con las tendencias mundiales, la Región tendrá un mayor número de personas de 60 años o más que de menores de 15 años para el 2030, aproximadamente 25 años antes que el promedio mundial. La pandemia de COVID-19 ha dado pie a una crisis de salud sin precedentes en todo el mundo. Sus efectos en las personas mayores y aquellas con enfermedades subyacentes han puesto de manifiesto los desafíos de abordar sus necesidades durante una emergencia de salud pública. Dada esta transición demográfica, es fundamental reflexionar acerca de la preparación de los sistemas y servicios con vistas a atender las necesidades de este grupo de población, incluidas la mejora de la planificación para casos de emergencia y la protección de las personas mayores.
Esta publicación forma parte de una serie titulada La Década del Envejecimiento Saludable en las Américas: situación y desafíos
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Hypertension, or high blood pressure, is a condition which generally has no symptoms and if left untreated, can lead to heart attacks, heart failure, stroke, kidney failure and blindness. Risk factors include older age, overweight or obesity, lack of physical activity, high salt/sodium intake, and h...igh alcohol intake.
Hypertension affects around 1 in 6 adults in the Americas and is the main risk factor for cardiovascular diseases, which are the leading cause of death in the region, responsible for around 2 million lives lost each year.
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En este documento se presenta una política para orientar y brindar apoyo a los Estados Miembros de la Organización Panamericana de la Salud (OPS), así como a la Oficina Sanitaria Panamericana, en las actividades de cooperación técnica dirigidas a mejorar la salud mental como prioridad para fome...ntar el desarrollo social, económico y de salud en la Región en el contexto de la pandemia de COVID-19 y posteriormente.
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The biennium 2020–2021 has revealed more clearly than ever the need for a strong, credible and independent WHO on the world stage. The coronavirus disease (COVID-19) crisis has demonstrated the fundamental importance of the global detection, response and coordination roles that only WHO can play a...cross all Member States. At the same time, the challenges to global health systems and the pressure to ensure equal access to quality health care and the best health possible for all have mounted. The triple billion targets of the Thirteenth General Programme of Work, 2019–2023 remain relevant. The work of WHO in all contexts has never been more critical. However, as several Member States have pointed out, the COVID-19 pandemic has highlighted the discrepancy between what the world expects of WHO and what it is able to deliver with the resources/capacity it has at its disposal. Sustainable financing is thus a key challenge for the Organization that must be addressed as part of the lessons learned from the current COVID-19 pandemic. Member States discussed this issue in detail during the Seventy-third World Health Assembly and their conclusions were reflected in resolution WHA73.1 (2020). The topic of adequate funding is not new. However, discussions on the matter have, to date, remained rather abstract. Building on previous discussions and taking account of lessons learned, the WHO Secretariat would like to initiate a process aimed at finding a concrete solution to the sustainable financing of WHO. This document proposes a process through which to arrive at such a decision, including the key stages and timeline.
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This manual and its Excel tool are under revision. The revised edition will be published soon.
The Water and Sanitation for Health Facility Improvement Tool (WASH FIT) presents a framework and acts as a guide to support multisectoral action to improve water, sanitation and hygiene (WASH) in health care. Central to the WASH FIT methodology is training and incremental improvements.
Implementat...ion of WASH FIT requires six preparatory steps at the national level, one of which is conducting national sensitization and training of trainers, followed by facility-level training. At the facility level, step 1 (of five) involves establishing and training a WASH FIT team.
The WASH FIT methodology is outlined in WASH FIT: A practical guide for improving quality of care through water, sanitation and hygiene in health care facilities. Second edition. (the WASH FIT guide), which includes a set of templates designed to help users with each phase of the improvement cycle.
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Today, the World Health Organization (WHO) is advancing the global fight against acute malnutrition in children under 5 with the launch of its new guideline on the prevention and management of wasting and nutritional oedema (acute malnutrition). This milestone is a crucial response to the persistent... global issue of acute malnutrition, which affects millions of children worldwide.
In 2015, the world committed to achieving the Sustainable Development Goals (SDGs), including the ambitious target of eliminating malnutrition in all of its forms by 2030. However, despite these commitments, the proportion of children with acute malnutrition has persisted at a worrying level, affecting an estimated 45 million children under five worldwide in 2022.
In 2022, approximately 7.3 million children received treatment for severe acute malnutrition (SAM). Although treatment coverage has increased, children with SAM in many of the worst affected countries are still unable to access the full necessary care for them to recover.
The Global Action Plan (GAP) on child wasting recognized the need for updated normative guidance to support governments in the prevention and management of acute malnutrition. WHO answered this call to action and developed a comprehensive guideline that provides evidence-based recommendations and good practice statements and will be followed by guidance and tools for implementation.
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This country cooperation strategy (CCS) outlines how the World Health Organization (WHO) will work with the Lao People’s Democratic Republic over the next five years (2024–2028), supporting the implementation of the five-year health sector development plans and the Health Sector Reform Strategy ...2021–2030 to attain the Sustainable Development Goals (SDGs) by 2030.
The Lao People’s Democratic Republic experienced substantial economic growth in the 30 years prior to the coronavirus disease (COVID-19) pandemic, contributing to reduced poverty and significant progress toward the SDGs. However, the COVID-19 pandemic brought this development to a halt. It was anticipated that the COVID-19 recovery and the tremendous population growth in recent years would provide opportunities for a shift toward more sustainable and inclusive development in the years ahead. In 2023, however, the contrary was the case. Rural residents, including many ethnic minorities, continued to face marginalization because of limited access to education, health care and economic opportunities.
Despite the challenges of COVID-19 and other disease outbreaks, the country has made significant improvements in health. Nonetheless, progress has been uneven and not everyone has benefited from these achievements. In the mountainous region, many people lack access to quality health care because of the unequal distribution of well-trained health-care workers. Preventable deaths due to poor-quality health care for children and newborns, infants and mothers remain a concern, as do communicable diseases such as sexually transmitted infections and tuberculosis. The increasing burden of noncommunicable diseases and the health impact of worsening climate change further heighten the need for strengthened and resilient health systems, which are at risk due to an underfunded health sector and weak economy.
This CCS aims to address remaining and future challenges as well as health needs while creating an impact that is sustainable. It identifies three strategic priorities and nine deliverables (Table 1) to support the attainment of the national vision of Health for all by all, as articulated in the 9th Health Sector Development Plan 2021–2025. It contributes to the country’s goals to achieve universal health coverage, graduate from least developed country status by 2026 and attain SDGs by 2030.
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Between 2012 and 2016, development assistance for HIV/AIDS decreased by 20·0%; domestic financing is therefore critical to sustaining the response to HIV/AIDS. To understand whether domestic resources could fill the financing gaps created by declines in development assistance, we aimed to track spe...nding on HIV/AIDS and estimated the potential for governments to devote additional domestic funds to HIV/AIDS.
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